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Finding the Fourth Proportional to 777,074.72, 1,163,459.80 and 397,177.32

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Solution

The fourth proportional to 777,074.72, 1,163,459.80 and 397,177.32 is: 594,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,074.72 : 1,163,459.80 = 397,177.32 : x
  2. Step 2: Convert to fraction form
    777,074.72/1,163,459.80 = 397,177.32/x
  3. Step 3: Cross multiply
    777,074.72x = 1,163,459.80 × 397,177.32
  4. Step 4: Simplify right side
    777,074.72x = 462,099,850,151.18
  5. Step 5: Solve for x
    x = 462,099,850,151.18/777,074.72
  6. Step 6: Final answer
    x = 594,665.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.